Improvement in lamps



UNITED STATESL PATENT Grrron.

JULIS A. PEASE, OF BOSTON, MASSACHUSETTS.

` IMPROVEMENT IN LAMPS.

Specification forming part of Letters Patent No. 144,130, dated October 28, 1873; application filed August 8, 1873.

To all whom 'it may concern.' K

Beit known that I, JULIUs A. FEASE, oit' the city of Boston, county of Suffolk and State of Massachusetts, have invented certain Improvements in Lamps, of which the following is a specication:

This invention relates to that class of lamps intended to consume tallow, adamantiue, parafine, and similar material; and it consists, first, in a reservoir or chamber for the reception of the fatty matter, having a central vertical tube or cylinder, within which is the wick-tube, surrounded by a feedcup or reservoir for the melted material, the heat being transmitted to the material by the central tube, and the iiame supplied with air on the principle of the -Bunsen burnera desideratum in lamps where fats rich inearbon a-re used 5 secondly, in a cup or tray having a vertical tube, terminating in a cap or flame-spreader, in combination-with the reservoir, its central cylinder, and wick-tube, the tube of the tray slipping over the tube of the reservoir, and dividing the body of the lamp into an upper anda lower chamber, through which passes the central nue, the whole being closed by a cap or cover, completing the lamp.

In the drawing referred to in this specification, and making a part of the same, Figure l is a vertical section on the line .r x, Fig. 2; and Fig. 2 is a similar section on the line y y, Fig. l.

Like letters refer to like parts inthe. several gures.

A represents the lamp, having the base a, upon which it rests, and from which rises the column supporting the main reservoir. This column is hollow and pierced by apertures c, to admit air to the central cylinder H. A diaphragm, b, divides the column and forms the bottom of the lower chamber B of the reser voir. Through the center of diaphragm b passes a vertical tube or cylinder H, which communicates with the hollow perforated column supporting the reservoir. Centrally of cylinder H passes the wick-tube F, provided with the usual ratchet-wheel for controlling the wick. Vithin the cylinder H, and surrounding the wick-tube, is a cup or reservoir,

4with oil, is lighted.

G, to receive and retain the melted material, which is supplied to the wick through openings N in the wick-tube. The cup G does not occupy the entire space inelosed by the cylinV der, but crosses it in a diametrical line. OomA munication is established between reservoir G and chamber B by openings L in the central cylinder. O represents an annular cup or tray, a little less in diameter than the chamber B, within which it lits. It, like chamber B, has openings M, communicating with reservoir G, and is provided with a central sleeve Or cylinder, terminating in a spreader, I. This sleeve is greater in diameter than the cylinder H, so that when the tray is in position the sleeve passes over the end of cylinder H, completing the central wick-chamber or draft-passage E. D is a cover, provided with a central orifice for the passa-ge of spreader I, and, when the several parts above described are in position, is used to cover the whole and complete the lamp.

The lamp is used as follows: The upper and lower chambers B and O are filled with the material to be burned, either in lump or cast in forms to t the chambers, or in any shape most easily obtained, and the wick, saturated The spreader I and sleeve thereof, becoming heated, transmit the heat to the material in the upper chamber, which melts and runs down into cup G, supplying the wick. Somewhat later, cylinder H, becoming heated, the material in the lower chamber melts, and also flows into cup G. The air to supply the iiame enters the hollow column through apertures c, and rises through central cylinder H. f

Tithout the upper chamber or tray, it would take longer for the tube running to the bot tom of chamber B to melt the material, and. the wick would be liable to char before it would get supplied with oil but, by making y as new and desire to secure by Letters Patl vided with a centra-1 Cylinder, and the wickentl tube and its reselwfoir7 Sbstantally as speci- 1. The cup or tray C, having a central sleeve ed. terminating in a s1 reader7s11bstanta11y as' and JULIUS A. PEASE. for the purpose specified. Vnesses:

2. The cup or tray having a centra-1 sleeve, C. D. BATES, in combination with the outer reservoir, pro- C. A. PEASE. 

